1 /**************************************************************************** 2 * Copyright (c) 1998-2003,2004 Free Software Foundation, Inc. * 3 * * 4 * Permission is hereby granted, free of charge, to any person obtaining a * 5 * copy of this software and associated documentation files (the * 6 * "Software"), to deal in the Software without restriction, including * 7 * without limitation the rights to use, copy, modify, merge, publish, * 8 * distribute, distribute with modifications, sublicense, and/or sell * 9 * copies of the Software, and to permit persons to whom the Software is * 10 * furnished to do so, subject to the following conditions: * 11 * * 12 * The above copyright notice and this permission notice shall be included * 13 * in all copies or substantial portions of the Software. * 14 * * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * 16 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * 17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * 18 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * 19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * 20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * 21 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * 22 * * 23 * Except as contained in this notice, the name(s) of the above copyright * 24 * holders shall not be used in advertising or otherwise to promote the * 25 * sale, use or other dealings in this Software without prior written * 26 * authorization. * 27 ****************************************************************************/ 28 29 /**************************************************************************** 30 * Author: Juergen Pfeifer, 1995,1997 * 31 ****************************************************************************/ 32 33 /*************************************************************************** 34 * Module m_opts * 35 * Menus option routines * 36 ***************************************************************************/ 37 38 #include "menu.priv.h" 39 40 MODULE_ID("$Id: m_opts.c,v 1.19 2004/12/25 21:36:12 tom Exp $") 41 42 /*--------------------------------------------------------------------------- 43 | Facility : libnmenu 44 | Function : int set_menu_opts(MENU *menu, Menu_Options opts) 45 | 46 | Description : Set the options for this menu. If the new settings 47 | end up in a change of the geometry of the menu, it 48 | will be recalculated. This operation is forbidden if 49 | the menu is already posted. 50 | 51 | Return Values : E_OK - success 52 | E_BAD_ARGUMENT - invalid menu options 53 | E_POSTED - menu is already posted 54 +--------------------------------------------------------------------------*/ 55 NCURSES_EXPORT(int) 56 set_menu_opts(MENU * menu, Menu_Options opts) 57 { 58 T((T_CALLED("set_menu_opts(%p,%d)"), menu, opts)); 59 60 opts &= ALL_MENU_OPTS; 61 62 if (opts & ~ALL_MENU_OPTS) 63 RETURN(E_BAD_ARGUMENT); 64 65 if (menu) 66 { 67 if (menu->status & _POSTED) 68 RETURN(E_POSTED); 69 70 if ((opts & O_ROWMAJOR) != (menu->opt & O_ROWMAJOR)) 71 { 72 /* we need this only if the layout really changed ... */ 73 if (menu->items && menu->items[0]) 74 { 75 menu->toprow = 0; 76 menu->curitem = menu->items[0]; 77 assert(menu->curitem); 78 set_menu_format(menu, menu->frows, menu->fcols); 79 } 80 } 81 82 menu->opt = opts; 83 84 if (opts & O_ONEVALUE) 85 { 86 ITEM **item; 87 88 if (((item = menu->items) != (ITEM **) 0)) 89 for (; *item; item++) 90 (*item)->value = FALSE; 91 } 92 93 if (opts & O_SHOWDESC) /* this also changes the geometry */ 94 _nc_Calculate_Item_Length_and_Width(menu); 95 } 96 else 97 _nc_Default_Menu.opt = opts; 98 99 RETURN(E_OK); 100 } 101 102 /*--------------------------------------------------------------------------- 103 | Facility : libnmenu 104 | Function : int menu_opts_off(MENU *menu, Menu_Options opts) 105 | 106 | Description : Switch off the options for this menu. If the new settings 107 | end up in a change of the geometry of the menu, it 108 | will be recalculated. This operation is forbidden if 109 | the menu is already posted. 110 | 111 | Return Values : E_OK - success 112 | E_BAD_ARGUMENT - invalid options 113 | E_POSTED - menu is already posted 114 +--------------------------------------------------------------------------*/ 115 NCURSES_EXPORT(int) 116 menu_opts_off(MENU * menu, Menu_Options opts) 117 { 118 MENU *cmenu = menu; /* use a copy because set_menu_opts must detect 119 120 NULL menu itself to adjust its behavior */ 121 122 T((T_CALLED("menu_opts_off(%p,%d)"), menu, opts)); 123 124 opts &= ALL_MENU_OPTS; 125 if (opts & ~ALL_MENU_OPTS) 126 RETURN(E_BAD_ARGUMENT); 127 else 128 { 129 Normalize_Menu(cmenu); 130 opts = cmenu->opt & ~opts; 131 returnCode(set_menu_opts(menu, opts)); 132 } 133 } 134 135 /*--------------------------------------------------------------------------- 136 | Facility : libnmenu 137 | Function : int menu_opts_on(MENU *menu, Menu_Options opts) 138 | 139 | Description : Switch on the options for this menu. If the new settings 140 | end up in a change of the geometry of the menu, it 141 | will be recalculated. This operation is forbidden if 142 | the menu is already posted. 143 | 144 | Return Values : E_OK - success 145 | E_BAD_ARGUMENT - invalid menu options 146 | E_POSTED - menu is already posted 147 +--------------------------------------------------------------------------*/ 148 NCURSES_EXPORT(int) 149 menu_opts_on(MENU * menu, Menu_Options opts) 150 { 151 MENU *cmenu = menu; /* use a copy because set_menu_opts must detect 152 153 NULL menu itself to adjust its behavior */ 154 155 T((T_CALLED("menu_opts_on(%p,%d)"), menu, opts)); 156 157 opts &= ALL_MENU_OPTS; 158 if (opts & ~ALL_MENU_OPTS) 159 RETURN(E_BAD_ARGUMENT); 160 else 161 { 162 Normalize_Menu(cmenu); 163 opts = cmenu->opt | opts; 164 returnCode(set_menu_opts(menu, opts)); 165 } 166 } 167 168 /*--------------------------------------------------------------------------- 169 | Facility : libnmenu 170 | Function : Menu_Options menu_opts(const MENU *menu) 171 | 172 | Description : Return the options for this menu. 173 | 174 | Return Values : Menu options 175 +--------------------------------------------------------------------------*/ 176 NCURSES_EXPORT(Menu_Options) 177 menu_opts(const MENU * menu) 178 { 179 T((T_CALLED("menu_opts(%p)"), menu)); 180 returnMenuOpts(ALL_MENU_OPTS & Normalize_Menu(menu)->opt); 181 } 182 183 /* m_opts.c ends here */ 184